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YXU - SFO

$218 Find Cheap Flights from London to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to San Francisco departing on 1/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags

Search hundreds of travel sites at once for deals on flights to San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to San Francisco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to San Francisco, as well as popular online travel agencies
In the last 7 days travelers have searched 45,017,868 times on KAYAK, and here is why:

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Cheap Flight Deals from London to San Francisco (YXU-SFO)

 
These are the cheapest deals for flights from London to San Francisco currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from London to San Francisco

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from London to San Francisco.

Recent one-way flight deals from London to San Francisco

Only flying one-way? Below are some of the best one-way flight deals from London to San Francisco found on KAYAK recently.

Recent last minute flight deals from London to San Francisco

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from London to San Francisco.

Recent direct flight deals from London to San Francisco

The latest deals for direct flights from London to San Francisco so you can sit back and relax without the need for a layover.

Cheap bus & train deals from London to San Francisco

Find recent round-trip train or bus tickets from London to San Francisco.

All round-trip flight deals to San Francisco

The cheapest plane tickets to San Francisco found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
8:00 pm - 1:05 pmYXU-SFO
20h 05m1 stop
1:55 pm - 7:12 pmSFO-YXU
26h 17m1 stop
$353WestJet
Find Deal
Thu, Jan 9 - Thu, Jan 30
8:00 pm - 1:05 pmYXU-SFO
20h 05m1 stop
1:55 pm - 7:12 pmSFO-YXU
26h 17m1 stop
$366WestJet
Find Deal
Thu, Jan 9 - Sun, Jan 26
8:00 pm - 1:05 pmYXU-SFO
20h 05m1 stop
1:55 pm - 7:12 pmSFO-YXU
26h 17m1 stop
$382WestJet
Find Deal
Wed, Jan 8 - Thu, Jan 30
8:00 pm - 1:05 pmYXU-SFO
20h 05m1 stop
1:55 pm - 7:12 pmSFO-YXU
26h 17m1 stop
$391WestJet
Find Deal
Wed, Jan 8 - Sun, Jan 26
8:00 pm - 1:05 pmYXU-SFO
20h 05m1 stop
2:54 pm - 7:12 pmSFO-YXU
25h 18m2 stops
$397
Find Deal
Thu, Jan 9 - Mon, Jan 27
5:45 am - 10:52 amYXU-SFO
8h 07m1 stop
11:59 pm - 2:50 pmSFO-YXU
11h 51m2 stops
$403United Airlines
Find Deal
Fri, Jan 10 - Fri, Jan 24
9:55 am - 11:08 pmYXU-SFO
16h 13m2 stops
10:45 pm - 9:15 amSFO-YXU
7h 30m1 stop
$408United Airlines
Find Deal
Mon, Jan 6 - Fri, Jan 24
5:45 am - 10:52 amYXU-SFO
8h 07m1 stop
8:25 am - 8:20 pmSFO-YXU
8h 55m1 stop
$438Air Canada
Find Deal
Sun, Dec 8 - Tue, Jan 7
5:45 am - 10:52 amYXU-SFO
8h 07m1 stop
10:45 pm - 9:15 amSFO-YXU
7h 30m1 stop
$460Air Canada
Find Deal
Sat, Dec 7 - Wed, Jan 8
9:55 am - 9:20 pmYXU-SFO
14h 25m2 stops
5:00 am - 8:20 pmSFO-YXU
12h 20m2 stops
$846
Find Deal
Mon, Dec 23 - Fri, Jan 3
3:25 pm - 9:42 pmYXU-SFO
9h 17m1 stop
$218Air Canada
Find Deal
Tue, Jan 14

Flights from London to San Francisco - Travel Insights & Trends

Get data-powered insights and trends into flights from London to San Francisco to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from London to San Francisco?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from London to San Francisco, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from London to San Francisco is April, where tickets cost $315 on average. On the other hand, the most expensive months are December and March, where the average cost of tickets is $764 and $570 respectively.

Good to know

Low season

February

High season

July

Cheapest flight

$218
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from London to San Francisco

When to book flights from London to San Francisco

Are your dates flexible? Find out the best times to travel from London to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from London to San Francisco

  • What is the cheapest flight from London to San Francisco?

    In the last 3 days, the lowest price for a flight from London to San Francisco was $218 for a one-way ticket and $353 for a round-trip.

  • Do I need a passport to fly between London and San Francisco?

    A passport is required to fly from London to San Francisco.

  • Which aircraft models fly most regularly from London to San Francisco?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from London to San Francisco?

    Star Alliance is the only airline alliance operating flights between London and San Francisco.

  • How does KAYAK find such low prices on flights from London to San Francisco?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to San Francisco.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to San Francisco?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from London is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to San Francisco?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Francisco with an airline and back to London with another airline. Booking your flights between London and SFO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to San Francisco?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airline flying from London to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from London to San Francisco. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from London to San Francisco? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.0
Air CanadaOverall score based on 8140 reviews
7.0Comfort
6.2Food
7.8Crew
6.8Entertainment
7.2Boarding
Airline reviews

The TSA people or whatever you call them were a bit rude- I asked why I had to take my shoes off bc I'm 75 and in the USA, I don't have to. The man didn't need to snap at me. It wasn't even busy! The plane was ok, a bit small for such a long flight, but I'm very familiar with the 737 used ( I fly it often between SFO and SAN) service was ok-nothing special. If I drank alcohol I guess I would be happy with free choices. the plane was HOT and even the FA commented on it. They tried to get it cooler, but it never happened.

8.0 ExcellentKerreen, Oct 2024YUL - SFO
Read more Air Canada reviews

The TSA people or whatever you call them were a bit rude- I asked why I had to take my shoes off bc I'm 75 and in the USA, I don't have to. The man didn't need to snap at me. It wasn't even busy! The plane was ok, a bit small for such a long flight, but I'm very familiar with the 737 used ( I fly it often between SFO and SAN) service was ok-nothing special. If I drank alcohol I guess I would be happy with free choices. the plane was HOT and even the FA commented on it. They tried to get it cooler, but it never happened.

Multiple change of the gates at Pearson, delayed flight was extremely uncomfortable.

Easy boarding, punctuality, decent service. I can only complain about the measly snack.

Never made this leg of the flight since we rebooked through United instead. Did not make it to immigration/US custom due to the delay. Had to spend the night on our own dime in Toronto

Booked flight was cancelled. Was rebooked but sat in airport for several hours for new departure.

YYZ air Canada security messed up which led to my kids missing their flight and having to go on a separate flight later in the day without the rest of the family. Customer service was horrible and have no sense of urgency or compassion for their customers. They refuse to compensate for their errors and making my kids wait hours in the airport. This isn’t the first time we have had issues with this airline and I won’t be flying with them again.

United did not permit online check-in from home as document scans were not getting uploaded. This should be fixed their app

Cancelled flight had to fight for a hotel voucher and lost my upgrade. Not great business.

dont advertise liquor drinks you don't have. begin flight on time. instead of an hour LATE. OVERHEAD BINS ARE TOO SMALL TO FIT STANDARD CARRY ONS

Flying Air Canada was pleasant and enjoyable. The United portion was lacking.

Book cheap flights from London to San Francisco

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from London to San Francisco found on KAYAK in the last 72 hours.
1/14Tue
1 stopAir Canada
9h 17mYXU-SFO
$218

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Everything you need to know for your flight from London to San Francisco

Information on your arrival and departure airports

San Francisco (SFO)
London (YXU)